Q6 of 86 Page 152

Suppose you have a rose plant growing in a pot, how will you demonstrate transpiration in it?

The process of transpiration can be demonstrated by tying a polythene bag around the rose plant and keeping the plant in sunlight for one or two hours. Droplets of water would be seen on the inner sides of polythene bag due to transpiration.


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A potted plant is kept horizontally for a considerable time. The three positions of the part A and B of the potted plant are shown in the following figures.

(i) Potted plant with shoot and root growing downward. (Diagram to be drawn)



(ii)


(iii) Potted plant with shoot and root growing upward (Diagram to be drawn)



a) Which figure shows the correct position taken by the parts A and B of the plant?


b) What type of phenomenon is exhibited by the figure by (A) in the figure (ii)?